fastboot烧录

准备工作

    1. 使用串口连接device和PC，通过minicom进入串口调试界面。
    2. 启动device进入uboot界面。
    3. 在uboot界面输入fastboot，进入fastboot模式。
    4. 在PC端指令fastboot烧录指令。

PC端烧录指令

fastboot用法简介

usage: fastboot [ <option> ] <command>

commands:
  update <filename>                        reflash device from update.zip
  flashall                                 flash boot + recovery + system
  flash <partition> [ <filename> ]         write a file to a flash partition
  erase <partition>                        erase a flash partition
  format <partition>                       format a flash partition 
  getvar <variable>                        display a bootloader variable
  boot <kernel> [ <ramdisk> ]              download and boot kernel
  flash:raw boot <kernel> [ <ramdisk> ]    create bootimage and flash it
  devices                                  list all connected devices
  continue                                 continue with autoboot
  reboot                                   reboot device normally
  reboot-bootloader                        reboot device into bootloader
  help                                     show this help message

options:
  -w                                       erase userdata and cache
  -s <serial number>                       specify device serial number
  -p <product>                             specify product name
  -c <cmdline>                             override kernel commandline
  -i <vendor id>                           specify a custom USB vendor id
  -b <base_addr>                           specify a custom kernel base address
  -n <page size>                           specify the nand page size. default: 2048

flash uboot

# 烧录uboot
$ fastboot flash uboot uboot.bin
# 重启device
$ fastboot reboot

flash kernel

# 烧录kernel
$ fastboot flash kernel arch/arm/boot/uImage
# 重启device
$ fastboot reboot

flash ramdisk

# 烧录ramdisk
$ fastboot flash uramdisk uramdisk.img

flash system

# 烧录system
$ fastboot flash system $OUT/system.img

flash recovery

# 烧录recovery
$ fastboot flash recovery $OUT/recovery.img